Class: Cardiac::LogSubscriber

Inherits:
ActiveSupport::LogSubscriber
  • Object
show all
Defined in:
lib/cardiac/log_subscriber.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LogSubscriber 



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# File 'lib/cardiac/log_subscriber.rb', line 9

def initialize
  super
  @odd_or_even = false
end

Instance Method Details

#identity(event) ⇒ Object 



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# File 'lib/cardiac/log_subscriber.rb', line 52

def identity(event)
  return unless logger.debug?

  name = color(event.payload[:name], odd? ? CYAN : MAGENTA, true)
  line = odd? ? color(event.payload[:line], nil, true) : event.payload[:line]

  debug "  #{name}  #{line}"
end

#odd? ⇒ Boolean 



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# File 'lib/cardiac/log_subscriber.rb', line 61

def odd?
  @odd_or_even = !@odd_or_even
end

#operation(event) ⇒ Object 



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# File 'lib/cardiac/log_subscriber.rb', line 14

def operation(event)
  return unless logger.debug?

  payload   = event.payload
  name, url, verb, result = *payload.values_at(:name, :url, :verb, :result)
  
  cache_trace = result.headers['X-Rack-Client-Cache'] if result
    
  stats = "#{event.duration.round(1)}ms"
  stats = "CACHED #{stats}" if cache_trace && name!='CACHE' && /fresh/ === cache_trace
  name  = "#{name} #{verb} (#{stats})"
  
  if extra = payload.except(:name, :verb, :url, :result).presence
    extra = extra.map{|key,value|
               key = key.to_s.underscore.upcase
               "\n\t +#{key}: #{key=='PAYLOAD' ? value : value.inspect}"
             }
  end
  
  if verbose && result
    verbosity = Hash===verbose ? verbose : {status: true, cache: true, headers: false, body: false}
    extra ||= []
    extra.unshift "\n\t +BODY: #{body.inspect}" if verbosity[:body]
    extra.unshift "\n\t +HEADERS: #{headers.inspect}" if verbosity[:headers]
    extra.unshift "CACHE: #{cache_trace}" if verbosity[:cache]
    extra.unshift result.status if verbosity[:status]
  end

  if odd?
    name = color(name, CYAN, true)
    url  = color(url, nil, true)
  else
    name = color(name, MAGENTA, true)
  end

  debug "  #{name}  #{url}#{'  ['+extra.join('; ')+']' if extra}"
end